## anonymous one year ago What is the equation of the line that passes through the points (−3, 2) and (−5, 8)?

1. Mehek14

do you know how to find the slope?

2. welshfella

first find the slope of the line do you know how to do that?

3. anonymous

y2 - y1/ x2-x1

@kyle55 my formula

5. anonymous

thank you :)

now just do it

7. Mehek14

correct so plug in your ordered pairs

:)

9. anonymous

8-2/ -5 + 3

10. Mehek14

good so far

11. anonymous

6/-2 -3

12. Mehek14

ok so m = -3

13. Mehek14

$$\bf{y=\color{blue}{-3}x+\color{red}{b}}$$

14. Mehek14

choose one of the ordered pairs you have

15. anonymous

y= -3(-5) + 8

16. anonymous

7= 15 + 8

17. anonymous

Y**

18. Mehek14

no remember 8 goes instead of y

19. anonymous

oh so 8= 15 + b

20. anonymous

-7= b

21. Mehek14

$$\bf{8=\color{blue}{-3}(-5)+\color{red}{b}}$$

22. Mehek14

yes correct b = -7

23. Mehek14

so you have the slope -3 and y-intercept -7

24. anonymous

what would the formula be?

25. anonymous

equation*

26. Mehek14

$$\bf{y=\color{blue}{m}x+\color{red}{b}}$$ slope = m = -3 y-intercept = b = -7

27. anonymous

3x + y = − 7

28. anonymous

?

29. anonymous

3x − y = −11 3x + y = − 7 . 3x + y = 5 x + 3y = 3

30. Mehek14

$$\bf{y=\color{blue}{-3}x-\color{red}{7}}$$

31. anonymous

32. Mehek14

$$\color{#0cbb34}{\text{Originally Posted by}}$$ @kyle55 3x + y = − 7 $$\color{#0cbb34}{\text{End of Quote}}$$ correct ^_^

33. anonymous

thank you :)

34. Mehek14

yw ^_^